FCTC FCTC Test Applying Mechanical Reasoning Questions and Answers 3

Question 1

A hydraulic jack has an input piston with an area of 2 square inches and an output piston with an area of 20 square inches.
If you apply 100 lbs of force, how much force is exerted on the output piston?

Accepted Answer

1,000 lbs

Answer

100 lbs

Answer

200 lbs

Answer

2,000 lbs

Question 2

An electric circuit has a 12-volt battery and a resistance of 4 ohms. What is the current flowing through the circuit?

Accepted Answer

3 amps

Answer

4 amps

Answer

8 amps

Answer

48 amps

Question 3

If a bolt has a coarse thread (fewer threads per inch), how does it compare to a fine-threaded bolt of the same size when turned one full revolution?

Accepted Answer

It advances more distance

Answer

It advances less distance

Answer

It advances the same distance

Answer

Thread count does not affect advancement

Question 4

A spring is compressed by 3 inches with 30 lbs of force. How much force is needed to compress it 5 inches?

Accepted Answer

50 lbs

Answer

18 lbs

Answer

30 lbs

Answer

150 lbs

Question 5

A block-and-tackle system has 4 rope segments supporting the load. If the load weighs 200 lbs, how much pulling force is required (ignoring friction)?

Accepted Answer

50 lbs

Answer

25 lbs

Answer

100 lbs

Answer

200 lbs

Question 6

Which of the following materials is the best conductor of electricity?

Accepted Answer

Copper

Answer

Wood

Answer

Rubber

Answer

Glass